China, Germany, and even Korea DPR.

@China
---Massive population
---Advancements in technology
@Germany
---One of the best European economies
---Stellar army
---Stunning advancements in technology
@Korea DPR
---Hatred for the "outside world" may spark a chain of wars, with them at the center of them
---1.5 million man army, all active duty.
---Seclusion means they are advancing at a rate we don't know, ehich the thought of is frightening.